遍历注册表某一子键下的所有键值

// C++11Demo.cpp : 定义控制台应用程序的入口点。

//

#include "stdafx.h"

#include <iostream>

using namespace std;

// QueryKey - Enumerates the subkeys of key and its associated values.

//     hKey - Key whose subkeys and values are to be enumerated.

#include <windows.h>

#include <stdio.h>

#include <tchar.h>

#define MAX_KEY_LENGTH 255

#define MAX_VALUE_NAME 16383

TCHAR pszSubPath[MAX_VALUE_NAME]=_T("SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall");

//注册表。同步信息

struct tagRegOper

{

      tagRegOper()

      {

           //pszAutoAccreditMark=_T("C:\Program Files (x86)\Kingsoft\SecManage\Path");

           //pszSubPath=_T("SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall");

           pszKeyName=_T("DisplayName");

           dwRegType = REG_SZ;

           hkeyRootPath=HKEY_LOCAL_MACHINE;

           RegAccess=KEY_READ;

      }

      //TCHAR* pszAutoAccreditMark;

      //TCHAR* pszSubPath;

      TCHAR* pszKeyName;

      DWORD  dwRegType;

      HKEY   hkeyRootPath;

      REGSAM RegAccess;

};

//获取同步信息，即从注册表寻找对应的键值

BOOL GetSynchroInfo(TCHAR* pszSubPath)

{

      tagRegOper regOper;

      HKEY hKey;

      TCHAR szLocation[MAX_PATH] = {''};

      DWORD dwSize = sizeof(DWORD);

      DWORD dwIndex=0;

      LONG lRet = RegOpenKeyEx(regOper.hkeyRootPath,pszSubPath, 0,regOper.RegAccess, &hKey);

      if(ERROR_SUCCESS!=lRet)

      {

           //assert(0);

           return FALSE;

      }

      lRet = RegQueryValueEx(hKey,regOper.pszKeyName, 0, &(regOper.dwRegType), NULL, &dwSize);

      lRet = RegQueryValueEx(hKey, regOper.pszKeyName, NULL,&(regOper.dwRegType), (LPBYTE)&szLocation, &dwSize);

      //找不到

      if (ERROR_SUCCESS != lRet)

      {

           //

      }

      TCHAR *pszpath=szLocation;

      if(_tcsclen(szLocation))

      {

           printf("%s ",pszpath);

           return TRUE;

      }

      return false;

}

TCHAR szLocation[MAX_PATH] = {''};

void QueryKey(HKEY hKey)

{

      TCHAR    achKey[MAX_KEY_LENGTH];   // buffer for subkey name

      DWORD    cbName;                   // size of name string

      TCHAR    achClass[MAX_PATH] = TEXT("");  // buffer for class name

      DWORD    cchClassName = MAX_PATH;  // size of class string

      DWORD    cSubKeys=0;               // number of subkeys

      DWORD    cbMaxSubKey;              // longest subkey size

      DWORD    cchMaxClass;              // longest class string

      DWORD    cValues;              // number of values for key

      DWORD    cchMaxValue;          // longest value name

      DWORD    cbMaxValueData;       // longest value data

      DWORD    cbSecurityDescriptor; // size of security descriptor

      FILETIME ftLastWriteTime;      // last write time

      DWORD i, retCode;

      LONG lRet;

      TCHAR achValue[MAX_VALUE_NAME];

      DWORD cchValue = MAX_VALUE_NAME;

      DWORD dwRegType = REG_SZ;

      DWORD dwSize = sizeof(DWORD);

      // Get the class name and the value count.

      retCode = RegQueryInfoKey(

           hKey,                    // key handle

           achClass,                // buffer for class name

           &cchClassName,           // size of class string

           NULL,                    // reserved

           &cSubKeys,               // number of subkeys

           &cbMaxSubKey,            // longest subkey size

           &cchMaxClass,            // longest class string

           &cValues,                // number of values for this key

           &cchMaxValue,            // longest value name

           &cbMaxValueData,         // longest value data

           &cbSecurityDescriptor,   // security descriptor

           &ftLastWriteTime);       // last write time

      // Enumerate the subkeys, until RegEnumKeyEx fails.

      if (cSubKeys)

      {

           printf( " Number of subkeys: %d ", cSubKeys);

           for (i=0; i<cSubKeys; i++)

           {

                 _tcscpy(pszSubPath,_T("SOFTWARE\WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall\"));

                 cbName = MAX_KEY_LENGTH;

                 retCode = RegEnumKeyEx(hKey, i,

                      achKey,

                      &cbName,

                      NULL,

                      NULL,

                      NULL,

                      &ftLastWriteTime);

                 if (retCode == ERROR_SUCCESS)

                 {

                      _tprintf(TEXT("(%d) %s "), i+1, achKey);

                      _tcscat(pszSubPath,achKey);

                      GetSynchroInfo(pszSubPath);

                 }

           }

      }

}

void _tmain(void)

{

      HKEY hTestKey;

      if( RegOpenKeyEx( HKEY_LOCAL_MACHINE,

           TEXT("SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall"),

           0,

           KEY_READ,

           &hTestKey) == ERROR_SUCCESS

           )

      {

           QueryKey(hTestKey);

      }

}